Point of Sale Architecture Terminals and EMV

A technical guide for software engineers, architects, and technical leaders building secure payment acceptance on the device. This volume covers the terminal side of modern Point-of-Sale development—from traditional terminals to SmartPOS devices and software-based SoftPOS solutions running on smartphones and tablets.

This is Volume 1 — Terminals & EMV of Point-of-Sale Architecture. The same core material is also available as a complete edition and as four topic-focused volumes:

Volume 1 — Terminals & EMV: SmartPOS, SoftPOS, EMV kernels, wallets, and the on-device transaction lifecycle.

Volume 2 — Payment Cryptography, HSMs & Session Security: DUKPT, PIN blocks, HSM custody, and JWT-based session security.

Volume 3 — Acquirer Backend & Scheme Integration: acquirer architecture, ISO 8583, scheme routing, and reconciliation.

Volume 4 — Testing, Certification, Deployment & Operations: EMV L3, PCI MPoC, secure deployment, and production operations.

Choose this volume if your work is focused on terminal-side architecture, or choose the complete edition for the full end-to-end reference.